Volume 253, Issue 12 pp. 2406-2412
Original Paper

Supercapacitor performance of binder-free buckypapers from multiwall carbon nanotubes synthesized at different temperatures

K. M. Popov

K. M. Popov

Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Acad. Lavrentiev ave., 630090 Novosibirsk, Russia

Search for more papers by this author
V. E. Arkhipov

V. E. Arkhipov

Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Acad. Lavrentiev ave., 630090 Novosibirsk, Russia

Search for more papers by this author
A. G. Kurenya

A. G. Kurenya

Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Acad. Lavrentiev ave., 630090 Novosibirsk, Russia

Search for more papers by this author
E. O. Fedorovskaya

E. O. Fedorovskaya

Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Acad. Lavrentiev ave., 630090 Novosibirsk, Russia

Novosibirsk State University, 2 Pirogova str., 630090 Novosibirsk, Russia

Search for more papers by this author
K. A. Kovalenko

K. A. Kovalenko

Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Acad. Lavrentiev ave., 630090 Novosibirsk, Russia

Search for more papers by this author
A. V. Okotrub

A. V. Okotrub

Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Acad. Lavrentiev ave., 630090 Novosibirsk, Russia

Novosibirsk State University, 2 Pirogova str., 630090 Novosibirsk, Russia

Search for more papers by this author
L. G. Bulusheva

Corresponding Author

L. G. Bulusheva

Nikolaev Institute of Inorganic Chemistry, SB RAS, 3 Acad. Lavrentiev ave., 630090 Novosibirsk, Russia

Novosibirsk State University, 2 Pirogova str., 630090 Novosibirsk, Russia

Corresponding author: e-mail [email protected], Phone: +7 383 3305352, Fax: +7 383 3309489

Search for more papers by this author
First published: 14 July 2016
Citations: 19

Abstract

Multiwall carbon nanotubes (MWCNTs) have been synthesized by aerosol-assisted catalytic chemical vapor deposition method from a 2% ferrocene solution in toluene at temperatures of 720 and 800 °C. After an oxidation by a HNO3/H2SO4 mixture, MWCNTs were dispersed in water and deposited in form of buckypapers with a thickness of ∼150 μm. The obtained materials were used as working electrodes of supercapacitors without adding of binder. The electrode from MWCNTs synthesized at lower temperature showed the larger capacitance in 1 M H2SO4 and 6 M KOH electrolytes, especially at low scan rates. An increase of double-layer capacitance was due to larger specific surface and microporosity of the material; a gain in pseudocapacitance was attributed to larger quantity of oxygenated groups developed on the defective surface of nanotubes. The electrode showed a good cyclic performance during a repetitive charge/discharge test.pssb201600240-gra-0001

A larger specific capacitance of MWCNTs synthesized at 720 °C is related with etching of nanotube tips and higher oxygenation of nanotube surface as the result of binder-free buckypaper electrode preparation.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.